CN202473522U - Compound soft magnetic core for power inductance - Google Patents
Compound soft magnetic core for power inductance Download PDFInfo
- Publication number
- CN202473522U CN202473522U CN2012200808363U CN201220080836U CN202473522U CN 202473522 U CN202473522 U CN 202473522U CN 2012200808363 U CN2012200808363 U CN 2012200808363U CN 201220080836 U CN201220080836 U CN 201220080836U CN 202473522 U CN202473522 U CN 202473522U
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- magnetic
- power inductance
- core cylinder
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 150000001875 compounds Chemical class 0.000 title abstract 4
- 239000000463 material Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 8
- 229910000859 α-Fe Inorganic materials 0.000 claims description 8
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000011162 core material Substances 0.000 description 32
- 229910003962 NiZn Inorganic materials 0.000 description 6
- 239000006247 magnetic powder Substances 0.000 description 6
- 230000004907 flux Effects 0.000 description 3
- 229910002555 FeNi Inorganic materials 0.000 description 1
- 229910005347 FeSi Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
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Abstract
The utility model discloses a compound soft magnetic core for power inductance. The compound soft magnetic core comprises two magnetic rings and one magnetic core cylinder, wherein the inner diameter of each magnetic ring is matched with the outer diameter of the magnetic core cylinder, and the two magnetic rings are respectively sticked to both ends of the magnetic core cylinder and are flush with the end surface of the magnetic core cylinder so as to form an I-shaped magnetic core. The compound soft magnetic core can meet the double requirements of the wide frequency and the high direct-current superposition of the magnetic core used for power inductance.
Description
Technical field
The utility model relates to a kind of composite soft-magnetic magnetic core, and particularly a kind of power inductance is used the composite soft-magnetic magnetic core.
Background technology
At present, along with fast development of information technology, the requirement with magnetic core also develops towards the high DC stacked direction of Kuan Pin ﹑ to power inductance.Existing power inductance is with the general independent employing NiZn ferrite of magnetic core, and the ferritic frequency of utilization of NiZn is higher, but saturation flux density Bs is lower, and the dc superposition characteristic of the device of making is relatively poor.
Summary of the invention
The utility model technical problem to be solved provides a kind of power inductance and uses the composite soft-magnetic magnetic core, has satisfied the Kuan Pin ﹑ high DC stacked double requirements of power inductance with magnetic core.
The technical scheme that the utility model technical solution problem adopts is: a kind of power inductance is used the composite soft-magnetic magnetic core; Comprise two magnet rings and a magnetic core cylinder; The external diameter of the internal diameter of said magnet ring and magnetic core cylinder is complementary; Said two magnet rings are bonded in the two ends of magnetic core cylinder and concordant with magnetic core cylinder end face respectively, are combined into " worker " font magnetic core.
As a kind of preferred, said magnet ring adopts Ferrite Material, and said magnetic core cylinder adopts metal magnetic heartwood material.
The metal magnetic heartwood material that the utility model adopts can be in FeSiAl magnetic powder core, FeSi magnetic powder core, FeNiMo magnetic powder core, high magnetic flux FeNi magnetic powder core and the amorphous magnetic powder core any.
In the utility model, the combination of two magnet rings and magnetic core cylinder can adopt the mode of epoxy resin or waterglass bonding to realize.
The material behavior of the General N iZn ferrite and the metal magnetic heart contrasts like following table:
| Material | The NiZn ferrite | The metal magnetic heart |
| Applying frequency scope (Hz) | >1M | 1k～1000k |
| Initial permeability μ i | 5～2500 | 10～500 |
| Saturation flux density Bs (mT) | 250～500 | 750～1600 |
| Curie temperature Tc (℃) | 120～450 | >300 |
| Power loss | High | Low |
The beneficial effect of the utility model is: " worker " font magnetic core that the magnet ring of two Ferrite Materials of employing and the magnetic core cylinder of a metal magnetic heartwood material are bonded to; On the one hand since the ferritic frequency of utilization of NiZn apparently higher than the metal magnetic heart, thereby improved the frequency of utilization of device; On the other hand because the Bs of the metal magnetic heart (750～1600mT) apparently higher than the ferritic Bs of NiZn (≤500mT), thereby improved the DC stacked performance of device.Therefore, NiZn ferrite and metal magnetic heartwood material are used in combination, learn from other's strong points to offset one's weaknesses, satisfied the high DC stacked double requirements of Kuan Pin ﹑ of the magnetic core that power inductance uses.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Below in conjunction with accompanying drawing the utility model is further specified.
Embodiment
As shown in Figure 1; A kind of power inductance is used the composite soft-magnetic magnetic core; Comprise the magnet ring 1 of two Ferrite Materials and the magnetic core cylinder 2 of a FeSiAl magnetic powder core material; The external diameter of the internal diameter of magnet ring 1 and magnetic core cylinder 2 is complementary, and two magnet rings 1 are bonded in the two ends of magnetic core cylinder 2 and concordant with magnetic core cylinder 2 end faces respectively, is combined into " worker " font magnetic core.Such magnetic core has satisfied the Kuan Pin ﹑ high DC stacked double requirements of the magnetic core that power inductance uses.
Claims (2)
1. a power inductance is used the composite soft-magnetic magnetic core; It is characterized in that: comprise two magnet rings (1) and a magnetic core cylinder (2); The external diameter of the internal diameter of said magnet ring (1) and magnetic core cylinder (2) is complementary; Said two magnet rings (1) are bonded in the two ends of magnetic core cylinder (2) and concordant with magnetic core cylinder (2) end face respectively, are combined into " worker " font magnetic core.
2. a kind of power inductance as claimed in claim 1 is used the composite soft-magnetic magnetic core, it is characterized in that: said magnet ring (1) adopts Ferrite Material, and said magnetic core cylinder (2) adopts metal magnetic heartwood material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200808363U CN202473522U (en) | 2012-03-07 | 2012-03-07 | Compound soft magnetic core for power inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200808363U CN202473522U (en) | 2012-03-07 | 2012-03-07 | Compound soft magnetic core for power inductance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473522U true CN202473522U (en) | 2012-10-03 |
Family
ID=46921666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200808363U Expired - Lifetime CN202473522U (en) | 2012-03-07 | 2012-03-07 | Compound soft magnetic core for power inductance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806913A (en) * | 2017-04-28 | 2018-11-13 | 日亚化学工业株式会社 | Have the composite component and its manufacturing method of cyclic adhesion magnet |
-
2012
- 2012-03-07 CN CN2012200808363U patent/CN202473522U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806913A (en) * | 2017-04-28 | 2018-11-13 | 日亚化学工业株式会社 | Have the composite component and its manufacturing method of cyclic adhesion magnet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |